JPS63294959A - Method and apparatus for purifying waste gas from paint or lacquer spray painting booth - Google Patents

Method and apparatus for purifying waste gas from paint or lacquer spray painting booth

Info

Publication number
JPS63294959A
JPS63294959A JP63037690A JP3769088A JPS63294959A JP S63294959 A JPS63294959 A JP S63294959A JP 63037690 A JP63037690 A JP 63037690A JP 3769088 A JP3769088 A JP 3769088A JP S63294959 A JPS63294959 A JP S63294959A
Authority
JP
Japan
Prior art keywords
paint
wet electric
electric filter
exhaust air
lacquer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63037690A
Other languages
Japanese (ja)
Inventor
パウルーゲルハルト・ゴホト
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of JPS63294959A publication Critical patent/JPS63294959A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/16—Plant or installations having external electricity supply wet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/42—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using electrostatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
    • B05B14/468—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material with scrubbing means arranged below the booth floor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/46—Spray booths

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、使用済洗浄水を循環させる方法で、塗料−又
はラッカー吹付は塗装室からの排気を浄化する方法及び
装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and a device for cleaning the exhaust air from a paint or lacquer spraying room with a method for circulating used wash water.

従来の技術 このような方法及び装置は次の年代順に認められた文献
から公知である。PRIOR ART Such methods and devices are known from the following chronologically recognized literature.

米国特許（ＵＳ−ＰＳ）第３４２１２９３号室床の下で
、排気が、循環された洗浄水と集中的に接触させられ、
排気からの水の分離の後に、この室から導出された塗料
が実際になお洗浄水中に存在している。この水に洗浄作
用を改良し、洗浄水の浄化を容易にする化学薬品を加え
ている。U.S. Pat. No. 3,421,293 below the chamber floor, the exhaust air is brought into intensive contact with the circulated wash water;
After separation of the water from the exhaust air, the paint removed from this chamber is actually still present in the wash water. Chemicals are added to this water to improve its cleaning action and make it easier to purify the water.

西ドイツ特許（ＤＥ−Ａｓ）第２１６１１９８号、同２
４１２９８８号及び同第２８１４２７６号明細書から公
知の装置は、いずれの場合にも洗浄水の戻しが記載され
ていないで同じ原理により作動している。排気と洗浄水
との間の接触にとって決定的な設備部分の構成は特別重
要である。この関係で、僅かな側音レベルでの良好な浄
化効率が望まれる。West German Patent (DE-As) No. 2161198, 2
The devices known from No. 412,988 and No. 2,814,276 operate on the same principle, without in each case mentioning the return of wash water. The configuration of the equipment parts critical to the contact between the exhaust air and the wash water is of particular importance. In this connection, good purification efficiency at low sidetone levels is desired.

欧州特許第００４７４３２号明細書による方法では、排
気洗浄が第１浄化工程として前提とされ、湿式電気フィ
ルターを用いる第２浄化工程が提案されており、この際
、洗浄液及び浄化された排気は部分的に循環される。In the method according to EP 0 047 432, exhaust gas cleaning is assumed as the first purification step, and a second purification step using a wet electric filter is proposed, in which the cleaning liquid and the purified exhaust gas are partially is circulated.

西ドイツ特許（ＤＥ−Ｐ４）第３０４２４６４号明細薔
の発明は、公知の洗浄装置構造のエネルギー必要経費を
低減するかもしくは同じエネルギー必要経費で良好な浄
化作用を得るための課題から出発している。洗浄装置筐
体の特定の構造上の構成が殊にその最も狭い断面の領域
で提案されている。DE-P4 30 42 464 The invention of Rose is based on the problem of reducing the energy requirements of known cleaning device designs or of obtaining a good cleaning effect with the same energy requirements. A particular structural configuration of the cleaning device housing is proposed, especially in the area of its narrowest cross section.

西ドイツ特許出願公開（ＤＥ−Ｏ８）第３５１７３９２
号明細書中では、通常の洗浄装置 置の後に、ペン７ユリー管の最も狭い断面でスプレーさ
れる水流を用いる第２の洗浄工程を意もう１つの浄化工
程を備えることもでき、これによれば、浄化された排気
の１部分がラッカー吹付は塗装室に戻される。West German Patent Application Publication (DE-O8) No. 3517392
In the specification, after the normal cleaning device installation, a second cleaning step with a water stream sprayed at the narrowest cross-section of the Penn 7 Urie tube can also be provided, whereby another cleaning step can be provided. For example, a portion of the purified exhaust air is returned to the lacquer spraying room.

これらの公知方法は、例外なく、第１のかつ大抵は唯一
の浄化工程として、多くの観点で非常に欠点を有する洗
浄装置を使用している。第１に、洗浄装置の最も狭い断
面での洗浄水のスプレーの際の、有効な浄化のために不
可避の排気流の高い圧力損失が挙げられる。更にこれに
、著るしい騒音発生も伴なう。最後に吹付は塗装室内の
通気も最適ではあり得ない。それというのも、格子状塗
装室床の下の比較的短かい通路上の排気流は、非常に狭
い断面上で締めつけられるはずであるからである。These known methods invariably use, as a first and often only cleaning step, a cleaning device which is highly disadvantageous in many respects. Firstly, there is the high pressure loss of the exhaust flow, which is inevitable for effective cleaning, when spraying the cleaning water at the narrowest cross-section of the cleaning device. Furthermore, this is accompanied by significant noise generation. Finally, in spraying, the ventilation inside the painting room may not be optimal. This is because the exhaust flow on the relatively short passages under the lattice coating room floor must be squeezed over a very narrow cross section.

この洗浄装置においては、水の側にも他の欠点が挙げら
れる。大きいロート状に狭められた排気流のための導管
面のまわりを洗浄するためにかなり多量の水が必要であ
る。このことから、結果的に、相応して大きい装置（こ
れは沈殿槽又は洗浄水からラッカー粒子を有効に分離す
るための装置である）を提供しなければならない。There are other drawbacks on the water side of this cleaning device. Significant amounts of water are required to clean around the conduit faces for large funneled exhaust streams. Consequently, a correspondingly large device must be provided, which is a settling tank or device for effectively separating the lacquer particles from the wash water.

一般に慣用の化学的凝固剤及び沈殿剤の使用は、更に、
洗浄水から分離された塗料及びラッカーがその中に含有
される有価物質の経済的回収のためには使用不能であり
、高い貯蔵経費の原因となる。The use of commonly conventional chemical coagulants and precipitants furthermore
Paints and lacquers separated from the wash water cannot be used for economical recovery of the valuable substances contained therein and cause high storage costs.

発明が解決しようとする課題 従って、先に記載の種類の方法で、前記の欠点を避け、
全体的に実際に経済的に操作することのできる方法を開
発する課題が存在する。Problem to be Solved by the Invention Therefore, in a method of the type described above, the above-mentioned disadvantages are avoided and
The challenge exists to develop a method that can be operated in an overall practical and economical manner.

課題を解決するための手段 この課題の解決のために、予め他の処理をせずに、排気
を洗浄水でスプレー処理し、次いで、直接、湿式電気フ
ィルターに導入することが提案される。意外にも、既に
、第２の浄化工程として、排気浄化用の洗浄装置の後で
使用されている湿式電気フィルターは、これが塗料−又
はラッカー吹付は塗装室の格子状床の直下に配置されて
いれば、困難なく、第１のもしくは所′望に応じて唯一
の浄化工程としても使用可能である。多くの実験は、湿
式電気フィルターの分離効率は、通常使用されている洗
浄装置のそれよりも良好であることを示している。この
ことは、湿式電気フィルターの使用の際の排気流中の圧
力損失は、洗浄装置にかけられるべき値の少部分である
にすぎないので、特に意想外のことである。洗浄装置に
比べたこの湿式電気フィルターの良好な有効性及び僅か
なエネルギー必要量は、特に、湿式電気フィルターでは
、洗浄水が相応する高い圧力で水の側止にスプレーされ
、洗浄装置では、最も微細な洗浄水粒子の形成が排気流
の作用によシ行なわれることに帰因する。Means for Solving the Problem In order to solve this problem, it is proposed to spray the exhaust air with wash water, without any other treatment beforehand, and then to introduce it directly into a wet electric filter. Surprisingly, wet electric filters, which are already used as a second purification step after the cleaning equipment for exhaust gas purification, are not suitable for paint or lacquer spraying and are placed directly below the grate floor of the painting room. If so, it can be used without difficulty as the first or, if desired, the only purification step. Many experiments have shown that the separation efficiency of wet electric filters is better than that of commonly used cleaning equipment. This is particularly surprising since the pressure drop in the exhaust stream when using a wet electric filter is only a small fraction of the value to be applied to the cleaning device. The good effectiveness and low energy requirements of this wet electric filter compared to cleaning devices are due in particular to the fact that in wet electric filters the cleaning water is sprayed at a correspondingly high pressure into the water stop, and in cleaning devices the most This is due to the fact that the formation of fine cleaning water particles is carried out by the action of the exhaust flow.

洗浄水導入又びスプレーの方式のこの違いから、更に、
この湿式電気フィルターでは特定の排気量を浄化するた
めに著るしく少量の洗浄水を必要とする利点が生じる。Due to this difference in the method of introducing washing water and spraying,
This wet electric filter has the advantage that a significantly smaller amount of wash water is required to purify a particular exhaust volume.

このことから、結果として、間接的に、水処理の後に、
相応する小さい沈殿槽もしくは水浄化装置が必要なだけ
である。From this, as a result, indirectly, after water treatment,
All that is required is a correspondingly small settling tank or water purification device.

排気流から静電気的に沈殿する塗料−及びラッカー粒子
は、慣用の化学薬品の使用なしに洗浄水から分離するこ
とができ、これに伴ない、貯蔵経費を節約し、沈殿した
塗料−及びラッカー残分を再使用する可能性が生じるこ
とが特に有利に立証された。Paint and lacquer particles that electrostatically precipitate from the exhaust stream can be separated from the wash water without the use of conventional chemicals, thereby saving on storage costs and eliminating precipitated paint and lacquer residues. It has proven particularly advantageous that the possibility of reusing the components arises.

最後に、洗浄装置の代りに湿式電気フィルターを使用す
る際に、格子状床の下の排気流を狭くしてはならずこれ
により、騒音発生も起こさず、室自体内の通気を有利に
行なうことができる。Finally, when using a wet electric filter instead of a cleaning device, the exhaust flow under the grid floor must not be narrowed, which also does not cause noise generation and favors ventilation within the room itself. be able to.

要するに、本発明方法は、課題に記載のすべての条件を
満たし、公知洗浄法よりも技術的かつ経済的に著るしく
良好な変法である。In summary, the method according to the invention fulfills all the conditions stated in the problem and is a technically and economically significantly better variant than the known cleaning method.

この方法の有利な態様は、請求項２から７に記載されて
いる。この方法の実施のために、ａ）上から下に通気さ
れている塗装室の格子状床の直下に設置された、流れの
側に予め接続された排気流を洗浄水でスプレー処理する
ための装置を有する湿式電気フィルター、ｂ）湿式電気
フィルターの下に設置された、流出洗浄水を集めるだめ
の慣用の装置及び排気の吸引除去のだめの慣用の通路、
並びにＣ）ラッカー塗装室中へ排気を戻すためもしくは
洗浄水をスプレー装置に戻すための自体公知の装置 よりなる装置が提案される。Advantageous embodiments of this method are described in claims 2 to 7. For the implementation of this method, a) an exhaust stream installed directly below the grate floor of the painting room, which is vented from top to bottom, and pre-connected to the flow side, for spray treatment with wash water; a wet electric filter with a device, b) a conventional device of a sump for collecting effluent wash water and a conventional passage of a sump for suction removal of the exhaust air, installed below the wet electric filter;
and C) a device is proposed consisting of a device known per se for returning the exhaust air into the lacquering chamber or returning the wash water to the spray device.

実施例 本発明の詳細及び利点を添付の第１図に記載の装置の略
示図で詳述する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details and advantages of the invention are explained in detail in the accompanying schematic diagram of the apparatus shown in FIG.

格子状床２を有するラッカー吹付は塗装室１内に、簡略
化された自動車車体３が示されている。これを手で又は
自動的に吹付は塗装法で塗装する。この際、過剰に生じ
るラッカーは、下向きの空気流と共に、格子状床２を通
ってこのラッカー吹付は塗装室１から排除される。床２
の直ぐ下に、スプレー装置６が備えられていて、これに
より、排気流は、同様に床２の直下に設置されている湿
式電気フ゛イルター４内に入る前に、微細な洗浄水粒子
と混合される。排気流はファン８により通路γを通って
取シ出され、循環系に案内され、洗浄水は排水面５上に
集められ、沈殿槽１１に導びかれる。ここから、洗浄水
の大部分はポンプ１２にょシ再びスプレー装置６に送ら
れ、再使用可能な塗料−及びラッカー残分を有する僅少
部分のみがポンプ１３を経てこの系から取シ出される。A simplified motor vehicle body 3 is shown in a lacquer spraying chamber 1 with a grid-like floor 2 . This is applied by hand or automatically using a spray painting method. In this case, the excess lacquer is removed from the coating room 1 through the grate floor 2 together with the downward air flow. floor 2
Directly below the floor 2, a spray device 6 is provided, by means of which the exhaust stream is mixed with fine wash water particles before entering the wet electric filter 4, which is also located directly below the floor 2. Ru. The exhaust stream is drawn off through the passage γ by a fan 8 and guided into the circulation system, and the wash water is collected on the drainage surface 5 and led to the settling tank 11. From here, the majority of the wash water is sent back to the spray device 6 via pump 12, and only a small portion containing reusable paint and lacquer residues is removed from the system via pump 13.

新しい洗浄水が導管１５から補充される。塗料−及びラ
ッカー分の除去された排気の１部分は、ファン９により
この循環系から排出され、吸収装置１０中で溶剤残分が
除かれ、次いで大気中に放出される。Fresh wash water is replenished through conduit 15. A portion of the exhaust gas free of paint and lacquer is removed from this circulation by means of a fan 9, freed of solvent residues in an absorber 10 and then discharged into the atmosphere.

導管１４からこの系内に新しい空気が導入される。Fresh air is introduced into the system via conduit 14.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の装置の略示図である。 １・・・塗装室、２・・・格子状床、３・・・車体、４
・・・湿式電気フィルター、５・・・排水面、６・・・
スプレー装置、１０・・・吸収装置、１１・・・沈殿槽
手続補正書（方式） 昭和６３年６月２７日FIG. 1 is a schematic representation of the apparatus of the invention. 1...Painting room, 2...Grid floor, 3...Car body, 4
... Wet electric filter, 5... Drainage surface, 6...
Spray device, 10... Absorption device, 11... Sedimentation tank procedure amendment (method) June 27, 1988

Claims (1)

【特許請求の範囲】 １、使用洗浄水を循環させる方法で塗料−又はラツカー
吹付け塗装室からの排気を浄化する方法において、排気
に、予め他の処理をせずに、洗浄水をスプレーし、次い
で直接、湿式電気フィルターに導びくことを特徴とする
、塗料−又はラツカー吹付け塗装室からの排気を浄化す
る方法。 ２、湿式電気フィルター中で浄化された空気量の７０〜
９０％を循環系に導びく、請求項１記載の方法。 ３、湿式電気フィルター中で浄化された空気量の１０〜
３０％を吸収装置中で後浄化し、大気中に放出する、請
求項１又は２記載の方法。 ４、湿式電気フィルターから流出する洗浄水を集め、排
気のスプレー処理のために戻す、請求項１から３までの
いずれか１項記載の方法。 ５、排気から分離された塗料−及びラツカー粒子を、湿
式電気フィルターから流出する洗浄水の１０〜３０％と
共に、この系から排除する、請求項１から４までのいず
れか１項記載の方法。 ６、湿式電気フィルターから流出する洗浄水を、沈殿槽
中に導びき、これから、排気のスプレー処理もしくは塗
料−及びラツカー粒子の搬出のために使用される洗浄水
量を別々に取り出す、請求項１から５までのいずれか１
項記載の方法。 ７、塗料−及びラツカー粒子を、搬出のために使用され
る量の水から分離し、この水量を同様に戻す、請求項１
から６までのいずれか１項記載の方法。 ８、請求項１から７までのいずれか１項記載の方法を実
施するための、 ａ）上方から下方に通気される塗装室の格子状床の直下
に設置された、流れの側で予め 接続された排気流を洗浄水でスプレー処理 するための装置を有する湿式電気フィルタ ｂ）この湿式電気フィルターの下方に設置された、流出
洗浄水を集めるための慣用の装 置及び排気の吸引除去のための通常の通路、並びに ｃ）排気を塗装室内に戻し、洗浄水をスプレー装置内に
戻すための自体公知の装置 より成ることを特徴とする、塗料−又はラツカー吹付け
塗装室からの排気を浄化する装置。[Claims] 1. In a method for purifying exhaust air from a paint or lacquer spray painting room by circulating the cleaning water used, the cleaning water is sprayed onto the exhaust air without any other treatment. A method for purifying the exhaust air from a paint or lacquer spray painting room, characterized in that it is then led directly to a wet electric filter. 2. The amount of air purified in the wet electric filter is 70~
2. The method according to claim 1, wherein 90% is directed to the circulatory system. 3. The amount of air purified in the wet electric filter is 10~
3. The process as claimed in claim 1, wherein 30% is postpurified in an absorption device and discharged into the atmosphere. 4. Process according to any one of claims 1 to 3, characterized in that the wash water flowing out of the wet electric filter is collected and returned for spray treatment of the exhaust air. 5. The process as claimed in claim 1, wherein the paint and lacquer particles separated from the exhaust gas are rejected from the system together with 10 to 30% of the wash water flowing out of the wet electric filter. 6. The washing water flowing out of the wet electric filter is conducted into a settling tank from which a quantity of washing water used for the spray treatment of the exhaust air or for the removal of paint and lacquer particles is extracted separately. Any 1 up to 5
The method described in section. 7. The paint and lacquer particles are separated from the quantity of water used for removal, and this quantity of water is likewise returned.
6. The method according to any one of 6 to 6. 8. For carrying out the method according to any one of claims 1 to 7, a) a pre-connection on the flow side installed directly below the grid floor of a painting room ventilated from above to below; b) a wet electric filter with a device for spray treatment of the discharged exhaust stream with wash water b) a conventional device installed below this wet electric filter for collecting the runoff wash water and for suction removal of the exhaust air; purifying the exhaust air from the paint- or lacquer spray painting room, characterized in that it consists of a normal passage and c) a device known per se for returning the exhaust air into the painting room and the cleaning water back into the spray device; Device.
JP63037690A 1987-02-21 1988-02-22 Method and apparatus for purifying waste gas from paint or lacquer spray painting booth Pending JPS63294959A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3705634.4 1987-02-21
DE19873705634 DE3705634A1 (en) 1987-02-21 1987-02-21 METHOD AND DEVICE FOR CLEANING EXHAUST AIR FROM PAINT OR PAINT SPRAYING CABINS

Publications (1)

Publication Number Publication Date
JPS63294959A true JPS63294959A (en) 1988-12-01

Family

ID=6321506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63037690A Pending JPS63294959A (en) 1987-02-21 1988-02-22 Method and apparatus for purifying waste gas from paint or lacquer spray painting booth

Country Status (4)

Country Link
US (1) US5039313A (en)
EP (1) EP0280360B1 (en)
JP (1) JPS63294959A (en)
DE (2) DE3705634A1 (en)

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Also Published As

Publication number Publication date
EP0280360B1 (en) 1992-03-18
DE3869160D1 (en) 1992-04-23
DE3705634A1 (en) 1988-09-01
EP0280360A1 (en) 1988-08-31
US5039313A (en) 1991-08-13

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